It lies 40 km NW of Pau on the Southern railway to Bayonne. The town also encompasses the small village of Sainte-Suzanne thus residents of the town are called either Orthéziens or Sainte-Suzannais. The population figures from 1999 give the population of the commune at 10,121 and of the canton at 16,168. In 1906, the town had 4,159 and the commune had 6,254.

History

During the 12th century, Orthez was the capital of Béarn, after Morlaàs and before Pau which is still the prefectural administrative capital. At the end of the 12th century, Orthez passed from the possession of the viscounts of Dax to that of the viscounts of Bearn, whose chief place of residence it became in the 13th century. Froissart records the splendour of the court of Orthez under Gaston Phoebus in the latter half of the 14th century. Jeanne d'Albret founded a Calvinist university in the town and Theodore Beza taught there for some time. An envoy sent in 1569 by Charles IX to revive the Catholic faith had to stand a siege in Orthez (battle of Orthez) which was eventually taken by assault by the Protestant/Huguenot captain, Gabriel, count of Montgomery. In 1684 Nicholas Foucault, intendant under Louis XIV, was more successful, as the inhabitants, ostensibly at least, renounced Protestantism, which is nevertheless still strong in the town. Another battle of Orthez occurred during the Napoleonic Wars on February 27, 1814 in which the Duke of Wellington defeated Marshal Soult on the hills to the north of Orthez. More recently, Gaston Planté, the French physicist, was born here on the 22 April 1834, his major claim to fame was the invention in 1859 of the lead-acid battery, the common car battery.